[meta-freescale] Problem with touchscreen Display 1366x768 with Qt 5.9 and eglfs

Vincent DEHORS vincent.dehors at smile.fr
Tue Jul 11 05:40:54 PDT 2017



I met the same kind of error recently. The "bit per pixel"
of the framebuffer interface should be 32, you can check/change the
value in /sys/class/graphic/fb[x]/bits_per_pixel. Default bpp can be
specified in DTS. 

I also remember that IPU configure DMA with burst
size and each line will must be a multiple of this burst size. This may
be related with your error for line width = 1366. 



Le 2017-07-11 13:58, Benjamin Federau a écrit : 

> Hello,
> I try
to get my 10'' Chalkboard touchscreen (resolution 1366x768) running with
a i.MX6 DualLite Colibri using Qt 5.9 and eglfs.
> When I start my Qt
application on the device it crashes with "Error : Could not create the
egl surface: error = 0x3003".
> If I set the resolution to 1280x720 for
the display the Qt application starts.
> I have read that the 1366x768
can cause some problems, but does someone ever got a Qt application with
eglfs running on that resolution?
> My setup:
> kernel-colibri-imx6
> qtbase :5.9.0
> imx-gpu-viv :5.0.11.p8.6
> Thanks and
> -
> Benjamin Federau
> -- 
> M.Sc. Benjamin Federau 
Integration Engineer 
> basysKom GmbH 
> Robert-Bosch-Str. 7 | 64293
Darmstadt | Germany 
> benjamin.federau at basyskom.com | www.basyskom.com
> Handelsregister: Darmstadt HRB 9352 
> Geschaeftsfuehrung:
Dr.-Ing. Eva Brucherseifer, Heike Ziegler

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